﻿/*
 * Copyright (C) 2011, EADS France
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * Author: Laurent WOUTERS
 */

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace xowl.gmi.compiler.ast
{
    class ASTPatternChoice : ASTPattern
    {
        public ASTPatternChoice() : base(null) { }

        public override List<ASTPattern> Split()
        {
            List<ASTPattern> result = new List<ASTPattern>();
            foreach (ASTPattern child in children)
                result.AddRange(child.Split());
            return result;
        }

        public override void BuildRoutes()
        {
            foreach (ASTPattern child in children)
                child.BuildRoutes();
        }
        public override bool NeedRoute()
        {
            foreach (ASTPattern child in children)
                if (child.NeedRoute())
                    return true;
            return false;
        }
        public override void SetParentRoute(string route)
        {
            foreach (ASTPattern child in children)
                if (child.NeedRoute())
                    child.SetParentRoute(route);
        }

        public override MinimalAST GetMinimalInner()
        {
            foreach (ASTPattern child in children)
            {
                MinimalAST cm = child.GetMinimalInner();
                if (cm != null)
                    return cm;
            }
            return null;
        }
    }
}
